Security system solutionsSmart card (the full name of the smart card system) has been widely used in various fields of human society, modern smart card system composed of acce...[View details]
The network structure of coal mine safety comprehensive monitoring system consists of field equipment layer, control layer, management layer. Operatio...[View details]
The ship is sailing or parked in a water transport or operating vehicles, is composed of many parts, according to the role and purpose of each part, c...[View details]
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